Parker Plastic, Incorporated, manufactures plastic mats to use with rolling office chalrs. Its standard cost information for last year follows: Parker Plastic had the following actual results for the past year: Requlred: Calculate Parker Plastic's direct labor rate and efficlency varlances. Note: Do not round Intermedlate calculations. Indlcate the effect of each varlance by selecting "F" for favorable, "U" for unfavorable, and "None" for no effect (I.e., zero varlance)